Topic: Clutch return spring color

[1967 eight barrel]

Just to confirm: The clutch over-center spring was white in my big block Shelby.

                                                                                   -Keith

[CT428CJ]

Just to confirm: The clutch over-center spring was white in my big block Shelby.

Right.

1968 1/2 428 CJ Mustang white pedal assist spring shown below next to a black small block spring.

I have light blue ones which were factory on 67-70 bigblock Mustang.

I have a blue spring as well but can't find the photo at the moment.

The blue spring is appears to be made from a wire thickness that is about halfway between the black & white springs.

[Bob Gaines]

Right.

1968 1/2 428 CJ Mustang white pedal assist spring shown below next to a black small block spring.
 I have a blue spring as well but can't find the photo at the moment.

The blue spring is appears to be made from a wire thickness that is about halfway between the black & white springs.

The light blue springs are for the upper and lower Z bar seen from the engine compartment side.

[CT428CJ]

There is also a blue, under dash assist spring.

[Bob Gaines]

There is also a blue, under dash assist spring.

If you are implying that there are two springs used under dash 67/68 at the same time then I am very skeptical at the least. I have not seen two used under dash nor does the assemblyline manual indicate such . White is for BB , black is for 289HP ,289 and 6cyl.

[CT428CJ]

What I am saying is that the under dash assist spring could be black (289/302), blue (390?), or white (428), likely depending on the pressure plate that was installed in the car.

[Bob Gaines]

What I am saying is that the under dash assist spring could be black (289/302), blue (390?), or white (428), likely depending on the pressure plate that was installed in the car.

Like I indicated in the previous post - "White is for BB , black is for 289HP ,289 and 6cyl." BB means ether 390 or 428. There is not any evidence to support a blue spring with a wire size halfway between the black and the white from the factory observation. Personal observations of many corroborate the ether black or white.  You may want to review the Ford MPC and or the assemblyline manuals for 67 and 68. Those two information sources indicate black and white springs typically used.

[CT428CJ]

I am sure that you are right.

I have scanned a copy of a picture that I have of all three springs. Can you help identify the blue spring?

[Bob Gaines]

I am sure that you are right.

I have scanned a copy of a picture that I have of all three springs. Can you help identify the blue spring?

Sorry that I can not be of any help.  I have never seen the blue variety nor does it turn up in any of the manuals that I use to supplement the gaps in my own personal observations. Hopefully someone else has come across it and can shed some light on the application.

[J_Speegle]

.............Can you help identify the blue spring?

Let me give it a tray

Have this picture of such a spring (blue spring) in a package marked C9ZZ-7523-B

Hope this helps

[midlife]

Jeff's part number is for a 390, 428, 429 8 cylinder engines for Mustangs, 1969/70 according to the 65-72 MPC (Section 75, page 8.

[Bob Gaines]

Let me give it a tray

Have this picture of such a spring (blue spring) in a package marked C9ZZ-7523-B

Hope this helps

Jeff, that can't be the same spring because the thicker pedal type return spring being discussed in the picture from reply 22 has only 13 coils . The coils on the one in your picture number 26 .Although there is little frame of reference the coils look much skinnier and it is a most likely smaller diameter spring from the looks of it in comparison with the bag and the size of the printing on the package.  I believe your picture is for the spring that goes on the upper z bar or lower z bar to the clutch fork.

[J_Speegle]

................ I believe your picture is for the spring that goes on the upper z bar or lower z bar to the clutch fork.

Checking the part number would tell you   Just posted it as a blue clutch to an effort to help out as I'm catching you after a long weekend trip

[CT428CJ]

Thanks but the springs that I posted pictures of are the pedal assist springs from under the dash.

The person that I bought the blue spring from told me that it came out  of a '67 390 Mustang but I don't have proof.

It does work quite well in my 68 1/2.

[Bob Gaines]

Thanks but the springs that I posted pictures of are the pedal assist springs from under the dash.

The person that I bought the blue spring from told me that it came out  of a '67 390 Mustang but I don't have proof.

It does work quite well in my 68 1/2.

I have only seen white springs in 67/68 390 equipped Mustangs. The assemblyline and other factory Ford manuals back my observation up.